Needle-release fob



A. H. SAXTON AND J. J. BACHMAYER.

NEEDLE RELEASE FOR BUNDLE TYING MACHINES.

APPLICATION FILED JAN. 30, 1919.

1,322,628. Patented Nov. 25, 1919.

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'ALBEBT H. SAXTON ANT) JOSEPH J. BACHMAYEB, 0F BLISSFIELD, MICHIGAN,

ASSIGNORS TONATIONAL BUNDLE 'I'YER COMPANY, OF BLISSFIELD, MICHI- GAN, ACORPORATION OF MICHIGAN.

NEEDLE-RELEASE FOR BUNDLE-TYING MACHINES.

Specification of Letters Patent.

Patented Nov. 25, 1919.

Application filed January 30,1319. Serial No. 274,137.

ToaZZ whom it may concern:

Be it known that we, ALBERT H. SAx'roN and JOSEPH J. BACHMAYER,citizensof the United States, and residents. of Blissfield, in thecounty of Lenawee and State of Michigan, have invented a certain new anduseful Needle-Release for Bundle -.Tying Machines; and we do herebydeclare the following to be a full, clear, and exact de scription of theinvention, such as will enable others skilled in the art to which itappertains to make and use thesame, reference being had to theaccompanying drawings and ,to the characters of reference markedthereon, which form a part of this specification.

This invention relates to bundle tying machines, and particularly to theneedle operating means thereof.

The object of'our invention is the pro- 7 vision of means in connectionwith the needle operating means of a machine of the class describedwhich, when the needle, in its forward stroke, encounters apredetermined resistance, will permit the needle to stand at rest duringthe remainder of the forward needle stroke operating movement of theactuating means, and which will, upon the next needle returning actionof the operating means, assume its normal needle operating connectionwith the needle. This is important in not only'preventing injury tobundles being tied, but also-in preventing injury to the hand of theoperator which may be grasping the bundle during the forward stroke ofthe needle.

The invention is fully described in the following specification, andwhile, in its broader aspect, it is capable of embodiment in numerousforms, a preferred embodiment thereof is illustrated in the accompanyingdrawings, in which Figure 1 is an elevation of a machine em bodying theinvention, and Figs. 2 and 8 are enlarged end details of the needlerelease embodying the invention, with the latter in broken inoperativeposition.

. Referring to the drawings, 1 designates the frame of a machineembodying the invention, 2 the tying mechanism and 3 the needle thereof,which operate in a manner well understood in the art. A pulley 4, whichi r ven from a y uit b e ou ce of p r,

as from a motor (not shown) mounted on the frame top, is carried by aframe stud and has a sprocket-wheel 5 fixed to its .hub and connected bya chain 6 to a sprocketwheel 7 mounted within a housing 8 on a shaftwhich operates the tying mechanism2.

The needle 3 isfixedly carried by a horizontal rock-shaft 9, suitably journaled in the.

framel, and which is provided at'the end thereof adjacent to the pulley4 with a fixed arm 10, which, when the needle is in its raised orinoperative position, 7 projects downwardly therefrom. A'second oroperating arm 11 projectsloosely from the shaft 9 adjacent to the arm10, and is adapted to lie for a portion of its length at the front sideof, said arm. The outer end of the arm 11 is connected by an operatinglink 12 to a crank or wrist pin on a side of the sprocket-wheel 7, beingprojected for that purpose through an opening in the housing 8, thuscausing a rocking needle operating movement to be imparted to the arm 11through the link 12.

A spring'catch finger 13 projects transversely from the arm 11 through aregistering opening 14 in the fixed arm 10, and has an ofi'set catchportion 15 intermediate its ends, which normally engages the outer sideof the arm 10 at the edge of said opening and yieldingly retains the twoarms in operating connection so that they may act together as a singlearm to impart rocking movements to the shaft 9. Should the forwardoperating stroke of the needle 3 be opposed by an abnormal force ofpredetermined resistance upon a forward operating movement of the arm11, the catch portion of the catch finger 13 will be sprung from holdingengagement with the outer side of the arm 10 and pass forward throughthe opening 14, thus permitting the arm 10, rock-shaft 9 and needle 3 tostand at rest during the remainder of the forward stroke of the arm 11.The catch finger 13 is of sufiicient length without its catch portion15, to prevent a complete withdrawal of the finger from the opening 14upon a relative breaking movement of the arms 10 and 11, and serves toguide the catch portion 15 back to operative catch engagement with thearm 10 upon the next rearward stroke'of the arm 1, as is apparent, th sp p e the portion-o f the catch finger,"without the preferably formed inan catch portion 15, is upward curve.

We ish it" understood that: our intention is not limited to any specificconstruction, arrangement or form of the parts as it 1s capable ofnnmeroii' modificationswithont" departing from the spirit of theinvention: as

Har'ng thus described our intention,

, What We claim as newfand desireto secure" adapted to have relative.inovem'ents to per'- init the roclg shaft. testand at rest dnring anioniati io bf s d means w ence predetermined resistance 1s offered toga vrocking of. the shaft in one (direction.

, 2 In a machine of the class described,

7' the combinationfwith a rock-shaft, a fixed armand a loose. armprojecting fronrsaid shaft,a spring connection between said arms adaptedto. yield topermit the shaft to stand 7 restf whe'n a predeterminedresistance is ofiere dtoa rockin'g thereof by said connected arms, andmeans connected ito'fsaid loose arm for imparting rocking movementsthereto.

- 3; In a machine of the class described, a

rock-shaft, aloosearm and .a fixed" arm projecting from said shaft inadj acentrelation, one having an opening therein, a spring catch'memb'er projectin through said iL In a machine ofth class described, arockshaft, 7 alloo se naaaxea arm projecting from said shaft adjacentrelation, one: ofr said a'rmsshaving an opening opening from the otherarm'and yieldingly actingtoi-retain the arms in operating relation, andmeans connected to the loose 4O =arm"'ffor' imparting rocking movementsthereiin'a spring-finger projecting from the other of arms "throughsaid, opening and-haying-an offset catch portion adapted n ag theater arin e w n: of ai Op ni 1 t .yi ldi el r th m in operating engagennentandhaving an ,ek-

tension "beyond (said; catchffpo rtiom and means connectedlto said loosearm for imparting rockin'g movements thereto;

Intestimony whereof, welhaveher'ennto signed our names tothisspecification.

. l ALBERT, sA'XToN. V sJQSEPH" J4 BAQHMAYEBrT Q

